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Question

Convert the pair of unlike fraction into its like fractions: 118 and 324

A
472 and 972
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B
118 and 972
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C
472 and 324
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D
354 and 1296
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Solution

The correct option is A 472 and 972
To convert the unlike fractions into its like fractions, we need to find the LCM of denominators of the given fractions.

LCM of 18 and 24
18 can be written as 18=2×3×3 and 24 can be written as 24=2×2×2×3.

Taking the factors with highest powers common, we get
32 from 18 and 23 from 24.

Multiplying them, we get 32×23=9×8=72 as the required LCM.

Now, we multiply 118 and 324 with 4 and 3 respectively to make their denominators as 72.

118=1×418×4=472

and 324=3×324×3=972

Option A is the correct answer

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